V8.03.256.2025.06.02

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

docs/CODING_CONVENTION.md

@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.02<br>
-**Build**: V8.03.127.2025.06.02<br>
+**Build**: V8.03.256.2025.06.02<br>
 
 # 2. Coding Style
 
@@ -39,8 +39,7 @@ neat features. Here's how you make use of them. Besides those short hints here,
 * `read` often can replace `awk`: `IFS=, read -ra a b c <<< "$line_with_comma"`
 * Bash can also deal perfectly with regular expressions, see
   e.g., [here](https://www.networkworld.com/article/2693361/unix-tip-using-bash-s-regular-expressions.html)
-  and [here](https://unix.stackexchange.com/questions/421460/bash-regex-and-https-regex101-com). You can as well have a look @
-  `is_ipv4addr()` or `is_ipv6addr()`.
+  and [here](https://unix.stackexchange.com/questions/421460/bash-regex-and-https-regex101-com).
 * If you still need to use any of `tr`, `sed` and `awk`: try to avoid a mix of several external binaries e.g., if you can
   achieve the same with e.g. `awk`.
 * Be careful with very advanced bash features. Mac OS X is still using bash version